High-stability wind tunnel experiment device

Abstract

The utility model discloses a wind tunnel experiment device with high stability, and relates to the technical field of wind tunnel experiments, the wind tunnel experiment device comprises a housing and a stabilizing assembly, the right side of the housing is connected with a test wind port, the stabilizing assembly used for increasing the stability of the device is arranged on the outer side of the housing, and the stabilizing assembly comprises a connecting ring, a tension spring, an outer fixing frame and a stabilizing cavity. A tension spring is connected to the inner side of the connecting ring, an outer fixing frame is connected to the outer end of the tension spring, a stabilizing cavity is formed in the outer fixing frame and the shell, an equipment cavity is formed in the side wall of the shell, and a hydraulic air rod is installed in the equipment cavity. According to the high-stability wind tunnel experiment device, the tension springs are annularly installed on the inner side of the shell and the inner side of the outer fixing frame at equal intervals, the tension springs exert annular external force outside the shell through the tension of the tension springs, so that when a wind tunnel experiment is carried out on the shell, the tension counteracts vibration caused by wind flow to the shell, and the stability of the wind tunnel experiment device is improved. And the device has high stability.

Description

Technical Field

[0001] The utility model relates to the technical field of wind tunnel experiments, in particular to a high-stability wind tunnel experiment device. Background Art

[0002] A wind tunnel is a laboratory that artificially generates and controls airflow to simulate the flow of gas around an aircraft or entity. It can also measure the effect of airflow on the entity and observe physical phenomena. It is a pipe-shaped experimental device. It is one of the most commonly used and effective tools for aerodynamic experiments. Wind tunnel experiments are an indispensable part of aircraft development. It not only plays an important role in the research and development of aviation and aerospace engineering, but also, with the development of industrial aerodynamics, is indispensable in the fields of transportation, housing construction, wind energy utilization, etc.

[0003] However, during the experiment, the wind flow of the existing wind tunnel test device will cause the device to vibrate, resulting in poor stability of the device and affecting the experimental results of the device.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a high-stability wind tunnel test device is provided. Utility Model Content

[0005] The utility model aims to provide a high-stability wind tunnel test device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-stability wind tunnel experimental device, comprising a shell and a stabilizing component, the right side of the shell is connected to a test air outlet, the stabilizing component for increasing the stability of the device is arranged on the outside of the shell, and the stabilizing component comprises a connecting ring, a tension spring, an external fixing frame and a stabilizing cavity, the inner side of the connecting ring is connected to a tension spring, and the outer end of the tension spring is connected to the external fixing frame, and a stabilizing cavity is arranged inside the external fixing frame and the shell.

[0007] Furthermore, an equipment cavity is provided inside the side wall of the shell, and a hydraulic gas rod is installed inside the equipment cavity.

[0008] Furthermore, a positioning groove is provided on the inner side of the shell, and an adjusting pull ring is installed on the output end of the hydraulic gas rod.

[0009] Furthermore, a corrugated sheet is installed on the inner side of the adjusting pull ring, and the adjusting pull ring is in a semicircular shape.

[0010] Furthermore, an air inlet pipe is installed on the left side of the shell, and a pressure stabilizing chamber is connected to the left side of the air inlet pipe.

[0011] Furthermore, an adjustment component for adjusting the size of the opening is provided at the right end of the corrugated sheet, and the end of the corrugated sheet and the shell are seamlessly connected.

[0012] Furthermore, the adjustment assembly includes an adjustment outer rod, an adjustment inner rod and an adjustment slot, and the inner side of the adjustment outer rod is connected to the adjustment inner rod via a slider, and the surface of the adjustment inner rod is provided with an adjustment slot.

[0013] Furthermore, the adjusting inner rod and the adjusting slot are an integrated structure, and the adjusting inner rod and the adjusting outer rod are slidably connected.

[0014] The utility model provides a high-stability wind tunnel experimental device, which has the following beneficial effects:

[0015] 1. The utility model uses tension springs to be equidistantly installed in an annular manner on the inner side of the shell and the outer frame. The tension springs use their own tension to act as an annular external force on the outside of the shell, so that when the shell is subjected to a wind tunnel test, the tension can offset the vibration of the shell caused by the wind flow, thereby making the device highly stable.

[0016] 2. The utility model uses the left end of the pleated sheet and the inner wall of the shell as an integrated structure to avoid the connection position affecting the passage of wind. The hydraulic gas rod adjusts the position of the pull ring through telescopic control. The adjusting pull ring adjusts the inner diameter and caliber of the pleated sheet. The two sets of adjusting pull rings and adjusting components adjust the inner diameter and caliber of the pleated sheet, so that the wind flow inside the shell can be changed by adjusting the channel diameter, so that the wind speed can be flexibly changed during the experiment. The adjusting outer rod and the adjusting inner rod form a circular ring. The adjusting outer rod is controlled by the hydraulic gas rod at the external adjustment position of the adjusting inner rod to adjust the air outlet diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of a high-stability wind tunnel experimental device of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of a stable component of a high-stability wind tunnel experimental device of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a test structure of an adjustment component of a high-stability wind tunnel experimental device.

[0020] In the figure: 1. Shell; 2. Test air outlet; 3. Stabilizing assembly; 301. Connecting ring; 302. Tension spring; 303. External fixing frame; 304. Stabilizing chamber; 4. Equipment chamber; 5. Hydraulic gas rod; 6. Positioning groove; 7. Adjusting pull ring; 8. Corrugated sheet; 9. Air inlet pipe; 10. Pressure stabilizing chamber; 11. Adjusting assembly; 1101. Adjusting outer rod; 1102. Adjusting inner rod; 1103. Adjusting groove. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 As shown, a high-stability wind tunnel experimental device includes a shell 1 and a stabilizing component 3. A test air outlet 2 is connected to the right side of the shell 1. An equipment cavity 4 is provided inside the side wall of the shell 1, and a hydraulic gas rod 5 is installed inside the equipment cavity 4. A positioning groove 6 is provided on the inner side of the shell 1. An adjusting pull ring 7 is installed at the output end of the hydraulic gas rod 5. The adjusting pull ring 7 adjusts the inner diameter and caliber of the corrugated sheet 8. Two sets of adjusting pull rings 7 and an adjusting component 11 adjust the inner diameter and caliber of the corrugated sheet 8. The wind flow inside the shell 1 is changed by adjusting the channel diameter, so that the wind speed can be flexibly changed during the experiment. A corrugated sheet 8 is installed on the inner side of the adjusting pull ring 7, and the end of the corrugated sheet 8 and the shell 1 are seamlessly connected. The left end of the corrugated sheet 8 and the inner wall of the shell 1 are an integrated structure to avoid the connection position affecting the passage of wind flow. The hydraulic gas rod 5 adjusts the position of the pull ring 7 by telescopic control, and the shape of the adjusting pull ring 7 is semicircular. An air inlet pipe 9 is installed on the left side of the shell 1, and a pressure stabilizing chamber 10 is connected to the left side of the air inlet pipe 9.

[0023] like Figure 2 As shown, a stabilizing component 3 for increasing the stability of the device is arranged on the outside of the shell 1, and the stabilizing component 3 includes a connecting ring 301, a tension spring 302, an outer frame 303 and a stabilizing cavity 304. The inner side of the connecting ring 301 is connected to the tension spring 302, and the tension spring 302 is equidistantly installed in a ring on the inner side of the shell 1 and the outer frame 303, and the outer end of the tension spring 302 is connected to the outer frame 303. The tension spring 302 acts as an annular external force outside the shell 1 through its own tension, so that when the shell 1 is subjected to a wind tunnel experiment, the tension offsets the vibration of the shell 1 caused by the wind flow, so that the device has high stability, and a stabilizing cavity 304 is arranged inside the outer frame 303 and the shell 1.

[0024] like Figure 3As shown, the right end of the pleated sheet 8 is provided with an adjusting component 11 for adjusting the opening size, and the adjusting component 11 includes an adjusting outer rod 1101, an adjusting inner rod 1102 and an adjusting groove 1103, and the inner side of the adjusting outer rod 1101 is connected with the adjusting inner rod 1102 through a slider, the adjusting outer rod 1101 and the adjusting inner rod 1102 form a circular ring, and the surface of the adjusting inner rod 1102 is provided with an adjusting groove 1103, the adjusting inner rod 1102 and the adjusting groove 1103 are an integrated structure, and the adjusting outer rod 1101 is controlled by the hydraulic gas rod 5 at the external adjustment position of the adjusting inner rod 1102 to adjust the air outlet diameter, and the adjusting inner rod 1102 and the adjusting outer rod 1101 are slidably connected.

[0025] In summary, the high stability wind tunnel test device is firstly based on Figure 1-Figure 3 In the structure shown in the figure, the pressure stabilizing chamber 10 is connected to the air compressor through a valve. During the experiment, the wind flow enters the shell 1 from the air inlet pipe 9 and is blown out to perform a wind tunnel experiment. During the experiment, if the wind speed is to be adjusted in real time, the hydraulic gas rod 5 can be used to control the telescopic adjustment of the adjustment pull ring 7 and the adjustment outer rod 1101 respectively, so that the two sets of adjustment pull rings 7 and the adjustment component 11 can adjust the inner diameter and caliber of the pleated sheet 8, so that the wind flow inside the shell 1 can be changed by adjusting the channel diameter, so that the wind speed can be flexibly changed during the experiment. During the test, the tension spring 302 acts as an annular external force on the outside of the shell 1 through its own tension, and the tension offsets the vibration of the shell 1 caused by the wind flow, so that the device has high stability.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A high-stability wind tunnel test device, comprising a housing (1) and a stabilizing component (3), characterized in that: The right side of the shell (1) is connected to a test air outlet (2); the stabilizing component (3) for increasing the stability of the device is arranged on the outside of the shell (1); and the stabilizing component (3) comprises a connecting ring (301), a tension spring (302), an external fixing frame (303) and a stabilizing chamber (304); the inner side of the connecting ring (301) is connected to a tension spring (302); the outer end of the tension spring (302) is connected to the external fixing frame (303); and the internal parts of the external fixing frame (303) and the shell (1) are provided with a stabilizing chamber (304).

2. A high-stability wind tunnel test device according to claim 1, characterized in that: An equipment cavity (4) is provided inside the side wall of the housing (1), and a hydraulic gas rod (5) is installed inside the equipment cavity (4).

3. A high-stability wind tunnel test device according to claim 2, characterized in that: A positioning groove (6) is provided on the inner side of the housing (1), and an adjusting pull ring (7) is installed on the output end of the hydraulic gas rod (5).

4. A high-stability wind tunnel test device according to claim 3, characterized in that: A wrinkle sheet (8) is installed on the inner side of the adjusting pull ring (7), and the adjusting pull ring (7) is in the shape of a semicircular ring.

5. A high-stability wind tunnel test device according to claim 1, characterized in that: An air inlet pipe (9) is installed on the left side of the shell (1), and a pressure stabilization chamber (10) is connected to the left side of the air inlet pipe (9).

6. A high-stability wind tunnel test device according to claim 4, characterized in that: An adjustment component (11) for adjusting the size of the opening is provided at the right end of the corrugated sheet (8), and the end of the corrugated sheet (8) and the shell (1) are seamlessly connected.

7. A high-stability wind tunnel test device according to claim 6, characterized in that: The adjustment assembly (11) comprises an adjustment outer rod (1101), an adjustment inner rod (1102) and an adjustment slot (1103), wherein the inner side of the adjustment outer rod (1101) is connected to the adjustment inner rod (1102) via a slider, and the surface of the adjustment inner rod (1102) is provided with an adjustment slot (1103).

8. A high-stability wind tunnel test device according to claim 7, characterized in that: The adjusting inner rod (1102) and the adjusting slot (1103) are an integrated structure, and the adjusting inner rod (1102) and the adjusting outer rod (1101) are slidably connected.

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